Respostas

2014-03-26T15:30:30-03:00
Origem (0,0)
M(-12,9)
DOM= √Xa-Xb²+√Ya-Yb²
DOM= √0-(-12)²+√0-9²
DOM= √12²+√-9²
DOM= √144+81
DOM= √225
DOM= 15